Error 27300 Error Installing Driver Klim6sysx64 Exclusive | Verified Source |
To resolve the Error 27300, follow these troubleshooting steps:
The most common cause is a leftover file from a previous installation. Standard Windows uninstallation often leaves registry keys or driver files behind. Download the official kavremover utility from Kaspersky. Boot your computer into .
Even if you have used Kaspersky software before, its uninstallation process may leave behind fragments. These orphaned files and registry keys can directly conflict with a new installation attempt, resulting in the 27300 error.
The error indicates that the installer failed to register or bind Kaspersky’s network filter driver ( klim6.sys ) to your system's network adapters. This comprehensive guide explains why this error happens and provides step-by-step solutions to resolve it. Understanding Error 27300 and klim6.sys error 27300 error installing driver klim6sysx64 exclusive
is not a random corruption – it is a deterministic resource locking conflict caused by a residual Kaspersky kernel driver or another security product asserting exclusive access. The solution requires breaking the lock via Safe Mode or a vendor removal tool. Without addressing the exclusive lock, standard retries will continue to fail.
Run the following commands one by one, pressing Enter after each: net stop cryptsvc
Double-click it and ensure its is set to Manual or Automatic . To resolve the Error 27300, follow these troubleshooting
The Error 27300 can have significant implications for computer users:
If the error persists, ensure that you have and that no other third-party firewall or antivirus (like McAfee or Norton) is currently active. These often "lock" the network stack, preventing the klim6 driver from installing exclusively.
If you are attempting to install or update antivirus software—most commonly —and are met with a abrupt halt, you may be seeing this technical message: "Error 27300. Error installing driver klim6.sys_x64_exclusive." Boot your computer into
This is the most common root cause. Error 27300 often points to a problem with the integrity of the Windows operating system. Specifically, it stems from corruption or misconfiguration of core system services like Cryptographic Services , the CryptoAPI (CAT) driver catalog store, or the system's ability to verify catalog (digital) signatures for drivers. These services are crucial for verifying that the software you are installing is trusted by Microsoft.
Are you encountering the frustrating "Error 27300" while trying to install the Klim6sysx64 exclusive driver? This error can be a major roadblock, preventing you from updating or installing the necessary drivers for your system. In this write-up, we'll guide you through the possible causes, solutions, and troubleshooting steps to resolve the issue.